pipingdesign: RE: Cone Valve Dam Outlet

From: <Geoff>
Date: Mon May 13 2002 - 17:38:00 EDT

Steve,

The question was asked of me by a friend and I just passed the name on. As I understand it, he had quoted a job and just put dollars against the item. If he gets to the next round of negotiation he will chase up the data.

Geoff
--- Steve McKenzie <Mechproj@xtra.co.nz> wrote:
> Geoff
>
> have you had any luck with Pratt et al? On thursday I have agreed , in a
> moment of weakness, to design and spec the hydraulics (oil) for a sluice
> gate at a hydro station (one of my little specialities) probably in your
> country. I will check out the current state of play with letdown valves. Am
> quite keen to design one, with your help, if vendor prices are silly, as
> they often are.Keep in touch.
>
> Cheers
>
> Steve
>
> -----Original Message-----
> From: Geoff Stone DD&D Australia [mailto:blenrayaust@yahoo.co.uk]
> Sent: Monday, May 13, 2002 6:01 PM
> To: PipingDesign@yahoogroups.com
> Subject: Re: [PipingDesign] Cone Valve Dam Outlet
>
>
> Steve
>
> I promised you picture of a double bellows unit in a thermoplastic
> application.
> I would have preferred a longer leg length but it does take up the thermal
> expansion in a long run of ABS.
>
> Geoff
> --- Steve McKenzie <Mechproj@xtra.co.nz> wrote:
>
> <HR>
> <html><body>
>
>
> <tt>
> Geoff 
> for a start, try Henry Pratt www.henrypratt.com 
> they make the type of thing you are looking for. 
> Maybe McNally Pittsburgh 
> I would also try ITT because I heard a rumour they bought Allsi Chalmers 
> cone valve designs. 
> 
> Cheers 
> 
> Steve McKenzie 
> 
> 
> ----- Original Message ----- 
> From: "Geoff Stone DD&D Australia"
> <blenrayaust@yahoo.co.uk> 
> To: "paul bowers" <pipingdesign@yahoogroups.com> 
> Sent: Wednesday, April 24, 2002 10:42 AM 
> Subject: [PipingDesign] Cone Valve Dam Outlet 
> 
> 
> > Does anyone in this forum know of a manufacturer of cone valves used
> as 
> > pressure let down valves below a dam. The duty is 400-1010 L/s with 
> upstream 
> > head of 60m . The head loss is modelled to be 25-40 m respectively.
> Valve 
> > required is to be electrically operated for flow control purposes. 
> > 
> > ===== 
> > Geoffrey D Stone 
> > Design Detail and Development 
> > We specialise in pipe network and waterhammer analysis, pipe stress 
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> =====
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> We specialise in pipe network and waterhammer analysis, pipe stress
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Design Detail and Development
We specialise in pipe network and waterhammer analysis, pipe stress analysis, buried pipelines and the design of thermoplastic pipe systems. Local tel 0402 35 2313 fax 02 8850 2313
Overseas tel 61 402 35 2313 fax 61 2 8850 2313

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http://launch.yahoo.com Received on Mon May 13 17:38:00 2002

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